Luis Martinez, ABC News

Investigation finds multiple problems with grueling ‘Hell Week’ for Navy SEALs

U.S. Navy(NEW YORK) -- A Navy investigation found that the already tough selection course for Navy...

Pentagon’s ‘UFO’ tracking efforts still find no alien origins

Celal Gunes/Anadolu Agency via Getty Images(WASHINGTON) -- The head of the Pentagon office reviewing UFO incidents reported...

Why document leak suspect Jack Teixeira had a high-level top secret security clearance

Douglas Sacha/Getty Images(NEW YORK) -- Jack Teixeira, the 21-year-old junior enlisted airman with the Massachusetts Air...

Biden administration will share reports on Afghanistan withdrawal with Congress, official says

Walter Bibikow/Getty Images(WASHINGTON) -- The Pentagon and State Department have shared with Congress their after-action reports...

Getting F-16s to Ukraine with training could take up to 18 months, Pentagon says

Digital Vision./Getty Images(WASHINGTON) -- While calls for the U.S. to send F-16s to Ukraine have generated...

Close-up photo of Chinese spy balloon in flight released by US military

Courtesy of Department of Defense(WASHINGTON) -- A close-up photo of the Chinese spy balloon, taken mid-air...

US believes Chinese surveillance balloon payload located, official says

Peter Zay/Anadolu Agency via Getty Images(WASHINGTON) -- A U.S. official said Friday it's believed the undercarriage...

How search for UFOs helped lead US government to Chinese spy balloons

Peter Zay/Anadolu Agency via Getty Images(WASHINGTON) -- The U.S. intelligence community's review of UFO incidents reported...

US to gain access to more bases in the Philippines with eye on China

Joeal Calupitan - Pool/Getty Images(MANILA, Philippines) -- Seeking to deter China's ambitions in the western Pacific, the...

Top Islamic State leader killed in U.S. raid in Somalia, officials say

pawel.gaul/Getty Images(WASHINGTON) -- A risky military ground raid by U.S. special operations forces on a cave...